Melt 1 cup butter in large skillet. Add green pepper,onion,green onion, & mushrooms and saute until soft. Heat remaining 1/2 cup butter in large saucepan; stir in flour. Add milk & cook, stirring, until thickened & smooth. Stir in salt & pepper.
Add sauteed vegetables & half-and-half. Bring to boil, stirring. Reduce heat & add crabmeat. Simmer, uncovered, about 5 min. Add Sherry.
(May substitute cooked, shrimp to make Shrimp Bisque. Restaurant used frozen smow crab, thawed but not drained)
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